User manual for PZ5 devices
Contents
1. 5 Electrical connection Connection examples This section gives a few examples of practical connections Other connection options can be combined from the various examples Co channel measuremin with current signals supply 230 VAC Analog Sensor input 1 api 1 output supply Auxiliary supply Se 5 Da oc NC U1 11 GND U2 12 GND DOOOOOODOOGOOOG B2 prs B1 4 A 230 VAC A Co channel measuremtn with voltage signals supply 24 VDC Analog Sensor is 1 Input 1 output supply Auxiliary supply Se De as GND U2 GND id 7 7 i A 24 VDC 2 A F 5 One channel measurement with current signal in combination with digital input and sensor supply voltage supply 230 VAC Analog Sensor put 1 Input 1 output supply Auxiliary g oD A supply input NC U1 14 GND U2 12 GND Din S1 B1 230 VAC A 4 10 6 Operation and function description 6 Operation and function description 6 1 Operation 1 7 segment display 2 Setpoint display 1 4 3 Zero key 4 Dimension gap 5 Gap 6 Plus key 7 Minus key Program key Setpoint displays 2 Optical threshold message 4 LED red Keys 6 7 8 and 3 Programming mode Increase of value range Decrease of value range vy Address Next lower program number A Address Next higher program num2. 3 static change of display to arithmetic function 4 keyed change of display 5 5 s change over cycle 6 10 s change over cycle 7 20 s change over cycle Display time 0 1 10 0 0 20 0 10 10 00 s one channel Arithmetic function only with 2 input channels K1 Channel 1 K2 Channel 2 3 K1 K 2 Konst Constant PN16 PN17 4 K1 K2 5 K 1 K 2 Konst 6 K 1 K 2 Konst 7 K1 100 K 2 a Ec J a a 7 Dscimaipacssothecrman oa y o e ia oscnaipees crime acaston 0000 0000 fo fe 1 K 1 Konst 2 K 2 Konst Konst Konst Analog output 20 Final value for analog output Option 9999 99999 10000 2i ER Offset value for analog output Option 9999 99999 0 none 1 Ch1 2 Ch2 3 arithmetic function Reference value for analog output Interface Switching of the interface behaviour E Programming lock so Proseminar Jowo oo fe a resso Tooo foo o a e o Function of the special inputs 0 Standard operation 1 Sending operation 0 no function 1 change of display 2 Hold function 3 Tara Function of the digital input 33 8 Program number description Function of the 4 key 0 no function 1 change of display 2 Hold function 3 Tara TARA Function 0 no Tara function 1 Tara function on channel 1 2 Tara function on channel 2 3 Tara function on Ch 1 amp Ch 2 HOLD Function 0 no Hold 1 keyed Hold 2 stati
3. Contant Underflow Underflow Channel 1 Channel 2 Contant OK or overflow Overflow Channel 1 Channel 2 Contant OK or underflow Underflow Channel 1 Channel 2 Contant Underflow Overflow Overflow Channel 1 Channel 2 Contant OK or underflow Underflow Channel 1 Channel 2 Contant Overflow Overflow Channel 1 Channel 2 Contant Overflow Overflow Channel 1 Channel 2 Contant Underflow Underflow Channel 1 Channel 2 Contant OK Underflow Channel 1 100 Channel 2 OK Underflow Channel 1 100 Channel 2 OK Underflow Overflow Underflow Overflow horizontal bars are displayed on the top of the display Underflow horizontal bars are displayed at the bottom of the display 13 6 Operation and function description 6 2 Alarms Relays An active relay or an activated setpoint is indicated by a flashing of the relevant setpoint LED which you find directly next to the 7 segment display Switch on delay Time between reaching the threshold and the resultant switching on of the relay Swith off delay Time between reaching the threshold and the resultant switching off of the relay Alarm confirmation Switch on or switch off interlock and rejection at activated digital input or zero key 14 Setpoint Threshold Off Display Hysteresis Setpoint Threshold Display Hysteresis Input 10 Threshold 0 Time s 5 Alarm swith on delay 10 s On Off Time s 15 6 Operation
4. P Internal index Setpoints no setpoint 2 relay outputs 4 relay outputs Mechanical options IP65 foil key pad screw clamp IP54 foil key pad screw clamp IP65 foil key pad plug in clamp IP54 foil key pad plug in clamp Supply voltage 115 VAC 230 VAC 24 VDC galv insulated Housing size 96x48 mm Measuring input Current voltage Please state physical unit by order e g m min 2 Technical data 2 Technical data Dimensions 96x48x134 mm BxHxD including plug in terminal wei mt SSS Measuring error 0 02 v MB 1 Digit Ty 20 40 C at measuring time 1 sec Temperature drift all measuring inputs 50 ppm K at TU lt 20 C bzw gt 40 C Measuring time 1 channel 0 1 10 00 seconds 2 channels 0 2 10 00 seconds Measuring principle Sigma Delta Resolution 24 bit Relay Switch over contact 230 VAC 5 A 30 VDC 2 A at ohm resistive load Switching cycles 0 5 105 at max contact load 5 106 mechanically Separation as per DIN EN 50178 characteristic data as per DIN EN 60255 2 Technical data Analog output 0 10 V 12 bit load gt 10 kQ 0 20 mA 12 bit load lt 500 Q 4 20 mA 12 bit load lt 500 Q galvanic insulated 24 VDC 50 mA RS232 9600 Baud no parity 8 databits 1 stopbit ASCII protocol optionally galv insulated Supply voltage 230 VAC 50 60 Hz 10 galvanic insulated 115 VAC 50 60 Hz 10 24 VDC 10 eaaa C
5. and function description Operating current Relays S1 S4 are off below the threshold and on on reaching the threshold Quiescent current Relays S1 S4 are on below the threshold and switched off on reaching the threshold Swith on delay The relay S1 S4 is on 10 seconds after reaching the threshold briefly exceeding the threshold does not lead to the relay being switched on The switch off delay functions in a similar manner in other words it keeps the set point switched on until the parameterised time has elapsed 6 Operation and function description Allocation of the alarms to a certain actuate value As it is not always desired that alarms follow the operating mode the outputs can be assigned to the minimal maximal value or any other value Therefor the adjustable value range is assigned to the according program number PN60 PN70 PN80 and PN90 Actuate value none Channel 2 Arithmetic function Mode _ Ca 1 Chanella C Optical response flashing display If one or some thresholds are broken the flashing of the alarm LED can amplify the optical response by assignment of the threshold PN59 to the 7 segment display Example The threshold for flashing of the display is set at setpoint 2 If setpoint 1 is exceeded and set point 2 is not the setpoint LED 1 lights up permanently If setpoint 2 exceeds the threshold the 7 segment display will start to flash setpoint 1 will light up permanently and s
6. another Where possible use twisted pair So you receive best measuring results Screen off and twist sensor lines Do not lay current carrying lines in the vicinity Connect the screening on one side on a Suitable potential equaliser normally signal ground The device is not suitable for installation in areas where there is a risk of explosion Any electrical connection deviating from the connection diagram can endanger human life and or can destroy the equipment 3 Safety advices e Do not install several devices immediately above one another or in an extremely thermal isolated housing Due to the internal heat dissipation of the decives the recommended ambient temperature can be excessed e The terminal area of the devices is part of the service Here electrostatic discharge needs to be avoided Attention High voltages can cause dangerous body currents e Galvanic insulated potentials within one complex need to be placed on a appropriate point normally earth or machines ground So a lower disturbance sensibility against impacted energy can be reached and dangerous potentials that can occur on long lines or due to faulty wiring can be avoided 4 Assembly 4 Assembly Assembly 1 7 segment display 2 Setpoint displays 1 4 3 Zero key 4 Dimension gap Gap 6 Plus key Minus key Program key 1 Position sealing gasket 3 Position fixing elements on both sides 2 Assemble devi
7. input channels For the PZ5 device it is possible to swith temporarily between the different channels via keypad Push the W or A key for longer then 1 second this leads to a switch over to the next channel The channels can be run through forwards with key A or backwards with key V Display Channel 1 Ch1 Channel2 Ch2 Arithmetic Ar Channel1 Chi and soon Example Under program number PN1523 the calculation Ar is parametrised as a permantent display The input value for channel 1 shall be displayed Push the A key for at least one second The PZ5 device acknowledges the change to channel 1 by shortly displaying Ch1 thereupon you can stop pushing the key The input value of channel 1 is shown for approx 7 seconds in the display then the display changes back to the parametrised display arithmetic Ar This operation is confirmed by Ar in the display To recall all channels the key A or V needs to be detached in the meantime 12 6 Operation and function description Overflow Underflow of the arthmetic result During the channel calculation the comma PN18 is included in the calculation as decimal point Each over or underflow of a channel leads in the calculation to a defined display This defined setting ensures that the corresponding set points go into a defined state Channel 1 Channel 2 Contant Overflow Overflow Channel 1 Channel 2 Contant Overflow Overflow Channel 1 Channel 2
8. mode the device jumps to the first program number that is available If user level PN52 3 is parametrised e g the access to the program numbers of the alarms is approved a change of the measuring input PNO is not possible for this setting To receive the access to all program numbers PN52 0 the programming lock under PN50 and the under PN51 stored 4 digit activation code need to be entered again and to be acknowledged by pushing the P key for approx 1 second After this the access to all program numbers is free Caution If the locking code got lost the device can be reset to the default value 0000 by the manufacturer without any data loss 30 8 Program number description Digital input and or zero key PN53 PN54 The digital input and the zero key can freely be related to additional functions Change of display Hold Taring Only by combination of activation and one additional function with activation of the related activator the extended functionality can be used Taring PN55 During taring the instantaneous value of the selected channels is set on zero and the difference to the actual value is stored in program number PN4 respectively PN9 The taring function can be actuated via the digital input or the zero key and needs to stay activated for at least 3 seconds The device reports the taring process by shwoing 00000 in the display The offset displacement is only related to the resolution of the display value The
9. to sensor calibration for e g channel 1 To program e g 5 setpoints 5 needs to be entered under PN100 Subsequently for each of the calibration points the measured variable must be applied to the unit and the respective display value needs to be parametrised under program numbers PN101 PN105 The sensor signal needs to be parametrised strictly increasing A distcance from at least 1 Digit to the previous display value should be kept If not a rejection in the form of not receiving a memory report Our example shows the linearisation of a pressure transducer for 0 100 mbar with an output of 0 20 mA and an nonlinear range between 0 75 mbar The display value is calculated from the known characteristic line of the transducer or determined empirically This means at a pressure of 15 mbar the transducer supplies 3 3 mA instead of the optimum value of 3 0 ma As 20 mA of the display correspond with 100 0 3 3 mA correspond 16 5 bevor correction To make this correction enter 15 0 under setpoint PN101 Setpoint PN Pressure Output Display bevor Desired display transducer mA correction Display 100 90 80 70 60 50 40 a Display with correction 30 s Display without correction e Calibration point Pressure mbar 10 20 30 40 50 60 70 80 90 100 110 23 7 Programming Approach to factory calibration PNO PN5 gt 0 During adjusted factory calibration a linearisation can be preset without applying t
10. 1 HOLD function The HOLD function is a static or keyed signal and is activated via the digital input or the zero key It always takes effect on the reference value that is allocated in the display With activated HOLD the lastly given measuring value remains and is by deactivation permanently overwritten by the measuring value recording With this function a test state can be recorded beyond a specific period so that this device can be used for control in run production too Advice HOLD value gets lost with re start 6 4 2 TARA function The TARA Function can be activated by zero key or digital input and needs to last for at least 3 seconds Thereby the instantaneous value of the channels is set on zero and the difference to the actual value in PN4 PN9 Offset displacement is stored This function is only done once after actuation of the desired trigger and has to be taken back bevor anew alignment The display reports this action by showing five little zeros in the display 800000 6 4 3 Configurable channel switch over The two input channels can be addressed via zero key externally via the digital input or time controlled This enables the user to see different measuring values in display change mode under PN11 6 Operation and function description 6 5 Interace RS232 RS485 All PZ5 devices can optionally be programmed or configurated via an interface Devices of the basic type do not have an interface Operating mode T
11. 800 0 This function can be used to display differences etc Multiplication Channel 1 Channel 2 Constant With this function the two scaled signals are multiplied with each other and then multiplied by a constant Example 100 0 40 00 20 80000 0 This function can be used to display power energy etc Ratio Channel 1 Channel 2 Constant With this function the ratio is formed between the scaled signals of channel 1 and channel 2 and then multiplied by a constant Example 100 0 40 00 20 50 0 This function can be used to display mixing ratios etc Percent Channel 1 100 Channel 2 With this function the scaled signal from channel 1 is multiplied by 100 and then divided by the scaled signal from channel 2 Example 100 0 100 40 00 250 0 This function can be used to display a percentage ratio 25 8 Program number description 8 Program number description The PZ5 device has a default configuration ex factory where sensor signals are changed into a display value of 0 10000 At reset on default values should be done for devices where their pre configuration is not known see chapter 9 Otherwise different adjustments can cause an unwished behaviour of the device These devices are equipped with a digital input by which functions like e g HOLD TARA Min MAX can be actuated Measuring input PNO PN5 For basic configuration of the device parametrise the suitable measuring input un
12. E sign conformity to 89 336 EWG Safety standard DIN 61010 3 Safety advices 3 Safety advices Please read the users guide and chapter 4 before installation and keep it for future reference Proper use The PZ5 is designed for the evaluation and display of transmitter signals standard signals With the set points it is possible to perform simple control tasks Caution Careless use or improper operation can result in personal injury and or damage to the equipment Control of the device The panel meters are checked before dispatch and sent out in perfect condition Should there be any visible damage we recommend close examination of the packaging Please inform the supplier immediately of any damage Installation The PZ5 must be installed by a suitably qualified specialist e g with a qualification in industrial electronics Notes on installation There must be no magnetic or electric fields in the vicinity of the device e g due to transformers mobile phones or electrostatic discharge The fuse rating of the supply voltage should not exceed a value of 6A N B fuse Do not install inductive consumers relays solenoid valves etc near the device and suppress any interference with the aid of RC spark extinguishing combinations or free wheeling diodes Keep input output and supply lines separate from one another and do not lay them parallel with each other Position go and return lines next to one
13. User manual for PZ5 devices Digital processor controlled arithmetic panel meter Two measuring inputs with calculation x In1 In2 K x In1 In2 K x In1 In2 K x Int In2 K x In1 100 In2 K Technical features e display from 9999 99999 e MIN MAX value recording e 30 points linearisation per channel e permanent cable breakage monitoring e optical setpoint display e Hold Tara function via keypad or digital input e configurable channel switching Contents GS Oe o I a Identification Technical data Safety advice Assembly Electrical connection Operation and function description 6 1 Operation 6 2 Alarms Relay 6 3 Analog output 6 4 Digital input ZERO key 6 4 1 HOLD Function 6 4 2 TARA Function 6 4 3 Configurable channel switching 6 5 Interface RS232 RS485 Programming Program number description 8 1 Program number table Error elimination N Oo O N 11 11 15 18 18 18 18 18 19 20 27 32 37 1 Identification 1 Identification STANDARD TYPES ORDER NUMBER Supply 115 VAC PZ5 0001 1440C Supply 24 VDC PZ5 0001 1740C galvanic insulated Options breakdown of order code Basic type Standard device type Two standard signal inputs Number of digits 5 digits Interface no RS232 RS232 galvanic insulated RS485 galvanic insulated Sensor supply no 10V 20mA 24 V 50 mA Outputs no 0 10 V 0 20 mA 4 20 mA Hepe pae ee
14. a higher program number or the W key for changing to a lower number By keeping the keys pushed e g P A the display will begin after approx 1 second to automatically run through the program numbers Change to the parameter Once the program number appears in the display you can push the F or A key to get to the parameters set for this program number The currently stored parameters are displayed IDL P a v In this case it is 75 640 20 7 Programming Changing a parameter After changing to the parameter the lowest digit of the respective parameter flashes on the display The value can be changed with the A or V key To move to the next digit the P key must be briefly pushed Once the highest digit has been set and confirmed with P the lowest digit will begin to flash again Example l l u The O is flashing this is the lowest digit and SH asks if you want to change it Let us assume an the figure is to be changed from 75 640 to A v 75 000 Briefly push the P key to move to the next digit The 4 begins to flash Change the figure by pushing A or Y to change the digit from 4 to 0 Briefly push the P key to move on to the next digit The 6 begins to flash Change the digit by pushing A or Y to move the 6 to a 0 P A v Briefly push the P key to move to the next digit The 5 and 7 do not need to be changed Saving of parameters All par
15. allocated to defined input values For the adjusted measuring range the final valueand the zero point need to be parametrised For parameterisation no sensor signal has to be applied because stored values are used To display a sensor signal of 4 20 mA for example PNO PN5 3 has to be parameterised Sensor calibration PNO PN5 4 6 During sensor calibration the device is calibrated directly at the measuring section via the sensor signal or a calibrator Therefor the measuring signal of the setpoint needs to be connected to the input of the device Under PN1 final value and PN2 zero point the related display value SCALE and the related sensor signal INPUT needs to be stored The sensor signal is measured by the factory parameter and displayed as current or voltage A measurement needs to be started by shortly pushing the P key By this process with 2 setpoints the device is aligned at the measuring section For further adjustments to the characteristic line of the sensors a linearisation can be activated Linearisation PN100 PN140 The PZ5 offers the possibility to linearize with up to 30 additional setpoints non linear sensors for the display of the measuring values and their subsequent processing analog output The number of the desired setpoints is determined under PN100 PN140 Be aware of chosing the right one as it can lead to a malfunction of the device in case of no adjustment 22 7 Programming Approach
16. ameters must be acknowledged by the user by pushing the P key for one second The changed parameters are then taken over as the current operating parameters and saved in the EEPROM This is confirmed by horizontal bars lighting up in the display All the newly entered data are confirmed by the unit If no confirmation is received the relevant parameters have not been saved e g confirmation of parameters P a v Changing from programming to operating mode If no key is pushed in the programming mode for about 7 seconds the unit will return automatically to operating mode Before SAVE will be displayed untill the next measuring value is displayed 21 7 Programming Two measuring inputs with arithmetic function The PZ5 is provided with two standard inputs which can be allocated via different types of arithmetic functions The inputs need to be configurated so the device works according to the signal that was generated by the sensor The adjustment of the parameter that form the basis is done under PNO and PN5 Setting Calibration of the measuring input All devices are calibrated in the factory whereby zero point and final value have been saved for the various measuring ranges Via terminal connections and the choice of the measuring input under PNO different types of input signals can be worked up Factory calibration current voltage under PNO PN5 1 3 For these parameters scaled display values can be
17. ber Activation of TARA or HOLD Reset for MIN MAX permanent Dimension gap 4 for physical unit Variable dimension strip Dimension on demand e g kg m 11 6 Operation and function description Switching on Before switching on check all the electrical connections to make sure they are correct On completion of the installation the device can be switched on by applying the supply voltage Starting sequence During the switching on process a segment test is performed for approx 1 second whereby all LED on the front including setpoint LED are triggered After this the type of software is indicated for approx 1 second and then also for 1 second the software version After the starting procedure the unit changes to operation display mode MIN MAX memory The measured minimum and maximum values are saved in a volatile memory in the unit and get lost when the unit is switched off You can call up the contents of the memory by pushing less than 1 second the A or Y key The relevant value is indicated for approx 7 seconds By briefly pressing the same key again you will return immediately to the display mode A gt Display of MAX value Vv Display MIN value You can erase the value shown in the display by simultaneously operating the A and V keys The erasure is acknowledged by horizontal bars The content of the memory will be lost with switching off of the device Display switch over between two
18. c Hold Threshold behaviour of the LED display Display flashing approx 0 5 seconds No flashing 0 not flashing Flashing at setpoint 1 1 flashing at 1 Flashing at setpoint 2 2 flashing at 2 Flashing at setpoint 3 3 flashing at 3 Flashing at setpoint 4 4 flashing at 4 Flashing at setpoint 1 and 2 5 flashing at 1 and 2 Flashing at setpoint 3 and 4 6 flashing at 3 and 4 Flashing at setpoint 1 2 3 and 4 7 flashing at 1 2 3 and 4 Reference value for setpoint 1 0 none 1 channel 1 2 channel 2 3 arithmetic function o we o o e CA Type of operation 0 Quiescent current 1 Quiescent current eae current 1 Operating current 64 Switching delay delay 10 0 seconds 65 Type of delay 0 none 1 Switching on delay 2 Switching off delay 3 Switching on off delay Reference value for setpoint 2 0 none 1 1 channel 1 2 channel 2 3 arithmetic function m mw O e o e 34 8 Program number description Type of operation 0 Quiescent current 1 Quiescent current Operating current 1 Operating current Switching delay 0 0 10 0 seconds oo Type of delay 0 none 1 1 Switching on delay 2 Switching off delay 3 Switching on off delay Reference value for setpoint 3 0 none 1 1 channel 1 2 channel 2 3 arithmetic function Threshold 9999 99999 1000 hes 3 Type of operation 0 Quiescent current 1 Quiescent current Operating current 1 Operat
19. ce 4 Tighten screws Type Panel cut out Assembly grid Assembly grid Front frame BxH in mm horizontally vertically 96x48 mm 92 0 08 x 45 00 0 6 120 mm recommended 96 mm recommended 5 Electrical connection 5 Electrical connection a DOOOOOOOOOOOOG NC Channel 1 H 0 10 V ao e i Digital input 115 VAC or Channel 1 10 24 230 VAC 0 4 20 mA VDC Option Digital input in combination Channel1 with sensor supply via a Gnd potential free contact Channel 2 0 10 V Channel 2 0 4 20 mA Channel 2 Gnd Option Relay outputs Option Interface RS232 RS485 5 Electrical connection Interface connection The lines for the RS232 interface must be connected 1 1 TxD to TxD und RxD to RxD RS232 PC RxD TxD 42 sps GND 41 Connection pattern PC or SPS lt PZ5 The interface RS485 is connected via a screened data line with twisted wires Twisted Pair A termination of the bus wire musst be connected at the end of each bus segments This is neccessary to guarantee a safe data transfer on the Bus Therefor a resistance 120 Ohm is inserted between the wires Data B and Data A 1200 RS485 PC DATAA A 42 oder DATAB 1 43 PZ5 SPS 41 Caution The potential reference can lead to a compensating current interface lt measuring input with a non galvanic insulated interface and can thus affect the measuring signals Data A Data B z PASEI 120 Ohm Device 1 Termination
20. der PNO PNS Possible input types are listet in the program number table Chapter 8 1 To assign characteristic lines into another device use the settings 4 5 or 6 under PNO PN5 Under this parameter setpoints are deposited as standardized values Current voltage and can be assigned by an optional interface into further devices Scaling of PN1 PN6 and PN2 PN7 PN1 PN6 and PN2 PN7 are used for the scaling of the device with these two parameter final value PN1 PN6 and zero point PN2 PN7 are parametrised For each setpoint there is a 5CALE value and an iNPU7 value The SCALE value indicates the desired display value By use of the NPU7 value the related measuring signal is set At factory calibration the desired current or voltage value is preset If sensor calibration is desired a measurement is actuacted by shortly pushing the P key Before the stored current or voltage value is displayed All inputs need to be confirmed by pushing the P key for approx 1 second the device confirms this by showing 5 horizontal bars Position after decimal point PN3 PN8 By changing this parameter the position of the comma in the display is changed Offset translation Zero point translation PN4 PN9 With this parameter it is possible to do a parallel translation of the parametrised characteristic line This can be neccessary if e g a pressure sensor seasons by and by and thus causes a zero point translation With corresponding paramet
21. e Overflow Underflow page 14 The unit permanently shows underflow e The input has a very low measurement check the measuring circuit e With a selected input with a low voltage signal it is only connected on one side or the input is open Not all of the activated setpoints are parameterised Check if the relevant parameter PN1 PN5 PN2 PN6 PN100 PN140 PN130 PN170 are adjusted correctly The arithmetic result produces an underflow see Overflow Underflow page 14 The word HELP lights up in the 7 e The unit has found an error in the configuration segment display memory Perform a reset on the default values and reconfigure the unit according to your application 4 The display values change in very rough During division the measuring value of the divisor is jumps very small check the measuring circuit Program numbers for input e The programming lock is set on an user level which parametrisation are not available does not allow the access A different sensor type has been parametrised under PN1 PN5 so the desired program number can not be parametrised ERRT lights up in the 7 segment display Please contact the manufaturer if errors of this kind occur 7 The addressed digital input does not Measure the current of the digital input with a react multimeter It should be between 1 mA and 3 mA Program numbers for the analog output The analog output is an option of this device type I
22. et point LED 2 will flash The flashing enhances the optical response and the operator sees immediately that an important threshold has been exceeded with this unit 6 Operation and function description 6 3 Analogausgang The optional analogue output is used for the transduction of a measuring value supported by a standard signal of 0 10 V or 0 4 20 mA The analogue output is paramerterised via the two program numbers PN20 final value fullscale and PN21 initial value Offset At the initial value the value is set at which the analogue output transmits the minimal value 0 V or 0 4 mA and at the final value the value at which the output transmits its maximum 10 V or 20 mA By this means it is possible to re scale the input signal of a transducer or even to convert it into another standard signal The analogue output can be set on channel 1 channel 2 or the arithmetic value via the actuate value PN22 The analogue output is updated within the cycle of the measuring time At a high measuring rate smaller cycle fluctuations of some milli seconds are possible 6 4 Digital input Zero key In combination with the digital input via terminal and or the zero key at the front functions like e g HOLD TARA or a channel switch over can be actuated The digital input is available in combination with the option sensor supply or via an external 24 VDC signal The zero key at the front of the device can be activated by keypress 6 4
23. f it PN20 PN22 are not accessible is not assembled then the program numbers are not shown The device does not react as expected If you are not sure if the device has been parametrised before then follow the steps as written in the next chapter and set it back to its delivery status 37 9 Error elimination Reset to default values To return the unit to a defined basic state a reset can be carried out to the default values The following procedure should be used e Switch off the power supply e Press button P e Swith on the power supply and press P for approx Further 2 seconds With reset the default values of the program table are loaded and used for subsequent operation This puts the unit back to the state in which it was supplied Caution e This is only possible when the programming lock PN50 allows access to all PNs or HELP is shown in the display e All application related data are lost PZ5X1CGB Stand 28 05 2010 38
24. h key The selection is done via program numbers PN53 and PN54 At the static channel switch over it is changed as long on the via PN11 selected channel PN11 1 3 as the related digital input or the zero key is deactivated again At the keyed channel switch over it is changed in the order Ch1 Ch2 and optional Ar at each actuation of the defined activator During the time controlled automatic channel switch over the display jumps from one channel to the next following one during the preset time cycle Ch1 Ch2 optional Ar If the arithmetic function is deactivated PN15 0 the display only changes between the two display values of channel 1 and channel 2 Even at activated display change MIN MAX values of the currently active display channel can be recalled via A and W keys The channel switch over is delayed by the MIN MAX display time Display time PN13 Under display time the time is set that shall pass between the update of the display The longer the time between two display cycles the optically calmer seems the display whereas a display time of 1 second is found very pleasant 27 8 Program number description Measuring time PN14 The device always executes a two channel measurement For a measuring interval adjustable via PN14 it is switched to and fro severable times between the input channels and by the individual measurements per channel a simple arithmetic average detemina
25. he interface can be operated in various modes that can be parameterised via the PN34 Interface behaviour PN34 0 Standard mode in which the unit only replies if called on to do so This mode is used only for configuration Furthermore the current measuring value can be recalled via commando A ow PN34 1 Transmission mode in which the measurements are transmitted via the serial interface cyclically with the set measuring time The transmission mode is interrupted on receipt of gt J and the unit changes to standard mode To change back to transmission mode the display must be restarted either by entering the command S or by switching the device off and on With the transmission mode the display value is transmitted via the interface in ASCII format Minus signs and decimal points are also transmitted so that the output can be displayed directly on a terminal or processed by a SPS Zeros at the front are suppressed during transmission With an over or underflow the display transmits horizontal bars hyphens yal Examples 0 00 J 9 99 J 999 99 J 123 45 J With the aid of this simple protocol structure the display data can be transferred very easily to a PC etc and further processed there In the simplest case a terminal program from the operating system is sufficient to store the received data in a file Configuration of the device via interface For configuration the set up
26. ibility to linearise a nonlinear sensor signal A detailed description can be found in Chapter 8 Linearisation PN100 gt 0 Serial number PN200 Under PN200 the 5 digit serial number can be recalled it describes an allocation to production process and production flow 31 8 Program number description 8 1 Program number table The following program number table contains all program numbers PN including function range of value default values and user level Range of value Default User level Channel 1 Measuring input 2 10 V Factory calibration 20 mA Factory calibration 20 mA Factory calibration 10 V Sensor calibration 20 mA Sensor calibration 20 mA Sensorkalibration 2 marae rore oo o id a oreraspacemen oso oo e Channel 2 Measuring input 2 10 V Factory calibration 20 mA Factory calibration 20 mA Factory calibration 10 V Sensor calibration 20 mA Sensor calibration 20 mA Sensor calibration Final value Fullscale 9 99999 r mavae ror fees o e General settings Default display channel 1 Channel 1 3 2 2 Channel 2 3 Arithmetic function Channel switch over via digital input 0 none A key 2 zero key or automatically 1 static change of display to channel 1 2 static change of display to channel 2 32 e es e Em oO Channel switch over via digital input zero key or automatically 8 Program number description
27. ing current Switching delay 0 0 10 0 seconds Type of delay 0 none 1 1 Switching on delay 2 Switching off delay 3 Switching on off delay Reference value for setpoint 4 0 none 1 1 channel 1 2 channel 2 3 arithmetic function Threshold 9999 99999 1000 eo Type of operation 0 Quiescent current 1 Quiescent current Operating current 1 Operating current Switching delay 0 0 10 0 seconds Type of delay 0 none 1 Switching on delay 2 Switching off delay 3 Switching on off delay 35 72 73 74 75 81 82 83 84 85 91 92 93 94 5 9 8 Program number description Linearisation 100 Number of additional setpoints channel 1 101 130 Setpoints 1 30 Channel 1 9999 99999 140 Number of additional setpoints channel 2 141 170 Setpoints 1 30 Channel 2 9999 99999 Information 36 9 Error elimination 9 Error elimination The following list gives the recommended procedure for dealing with faults and locating their possible cause 1 The unit permanently indicates overflow The input has a very high measurement check the measuring circuit e With a selected input with a low voltage signal it is only connected on one side or the input is open Not all of the activated setpoints are parameterised Check if the relevant parameter PN1 PN5 PN2 PN6 PN100 PN140 PN130 PN170 are adjusted correctly The arithmetic result produces an overflow se
28. nalog sensor and this sensor shows a drift around the zero point If the signal changes at idleness of the motor slightly still a rotation speed of 0 is shown Marginally negative rotation speeds are suppressed 28 8 Program number description Analog output PN20 PN21 and PN22 The parameter of the optional analog output apply to the scale of the device and are cyclical updated with the measuring time Via PN22 0 the analog output can be deactivated whereas it remains on its initial value after a re start of the device The Analog output can be related to all other possible values that are collected in the device For further information please see Chapter 7 or the program number table in Chapter 8 1 Initial value and final value are always displayed without comma This is always based in the depiction of the measuring value in the display this means at a depiction of e g 6 400 the final value can be parametrised by 6400 to this display value Interface behaviour PN34 The current display value can be sent via the optional interface In standard operation PN34 0 the display stays passive and expects data from the Bus This operation is suitable for the configuration of the device At slowly processes the current measuring value can be recalled actively via command During sending mode PN34 1 the current measuring value is sent actively by the device in the cycle of the measuring time Further information can be found in Chap
29. o the sensor signal Here the desired number of channel setpoints needs to be entered under PN100 PN140 in order to allocate display values to a defined measuring signal Starting on setpoint PN101 the display value Scale and subsequent the corresponding measuring signal Input need to be programmed Both actions are stored by pushing the P key for approx 1 second Input channels and Offset The PZ5 device has two input channels where standard signals optionally 0 10 V 0 20 mA or 4 20 mA can be connected Different signals can be collected for input signals e g channel 1 collects voltage and channel 2 collects current For each channel an arbitrarily measuring range can be set The offset displacement can be adjusted for each channel with PN4 and PN9 Thus an irregularity of the accuracy or drifts of sensors can be balanced Two channel measurement with calculation The measurement happens in an alternating process during this process it will be switched between the set measuring time and the two input channels The time of the particular indivdual measurement depends on the parametrised measuring time Afterwards the two ascertained values will be allocated in accordance to the in PN15 selected function and the result will be displayed The arithmetic functions of the device are based on a floating point arithmetic and include the parametrised comma in the calculation Single channel measurement A single channel meas
30. risation the sensor can be adjusted on the zero point again During offset translation the original characteristic line can be programmed by the user with help of PN1 PN2 or PN101 130 or it can be the characteristic line of a temperature sensor The value parametrised under PN4 is added to the original display value If e g a temperature sensor shows 0 C instead of 3 C you can compensate these irregularities by changing the value under PN4 from 0 to 3 This parameter can be changed directly by taring if it was acutated by the zero key or the digital input 26 8 Program number description Default display channel PN10 The PZ5 can be parametrised and displayed on any display channel independent of the calculation If the arithmetic function PN15 0 is deactivated the channel value is set on zero Configurable channel switch over PN11 This program number enables the user to see all measuring values of the channel and the arithmetic function during standard operation Therefor all different types of operation like e g a static keyed or automatic display change are supported by the device Bevor each change of the channel the device shows the name of the channel in the display For channel 1 it displays Ch1 and for channel 2 it displays Ch2 For the arithmetic function it displays Ar if it was activated by PN15 gt 0 The static and keyed channel swith over can be triggered via the digital input or the fourt
31. taring can be undone by programming program number PN4 or PN9 to the value zero HOLD Function PN56 At HOLD function the current display value is recorded An update of the device with a new measuring value is not happening any more To display this state the display flashes with the kept display value The HOLD function can be activated keyed or static During keyed mode the HOLD function is kept until the next activation this is done by shortly and uniquely activating the actuator which can be the digital input or the 4 key During static HOLD the actuator needs to stay active for the whole length of time of the HOLD function The HOLD function and the display flashing to threshold values PN12 use both the flashing of the display value Both differ in the flashing frequency which is clearly higher for the display flashing on treshold values For a better differentiation and to aviod a mix up one should surrendor of one of both function as a rule Alarms Relay PN59 to PN95 The behaviour of the alarms can be influenced by different program numbers The general information refer to the scaled measuring value and are updated by the set measuring time If the optional relays are included in the display then they are connected parallely to the alarms More details about the different parameter are described in Chapter 6 2 Alarms Relays beschrieben Linearisation PN100 to PN130 and PN140 to PN170 By linearisation the user has the poss
32. ter 7 Operation mode Security settings User level PN50 to PN52 The access to the program numbers is controlled by the security settings The user has only access to settings that were allowed by the plant operator like e g the adjusment of the alarm thresholds The smaller the numerical value of the under PN52 preset user level the larger is the grade of the saving of the device parameter from user interventions 29 8 Program number description User level PN52 Display brightness Programming lock Serial number Alarm threshold value 61 71 81 91 Alarm parameter 59 95 lt x x x x oo See ses Interface parameter Option 32 34 x Analog output parameter Option 20 22 x vessia rnrn Jos p Linearisation parameter for the 100 170 X X X measuring input Bae lt x lt xX x lt x lt Ea a puserivel EE The user level 1 3 5 and 7 are reserved at this parametrisation always the numeric higher user level is active 2 4 6 und 8 The user level adjusted under PN52 is activated as long as the programming lock PN50 differs with the activation code PN51 on a value basis For dispatch of the PZ5 both parameter are set to the values 0000 by what the programming lock is deactivated To activate the adjusted user level a 4 digit number needs to be entered as activation code under PN51 It needs to be confirmed by pushing the P key for approx 1 second During the change into program
33. tion is used The conversion time of the integrated AD converter is aligned dynamically to the measuring time approx 30 approx 30 approx 30 approx 30 The AD converter is equipped with a digital filter function which suppresses very effectively a possible mains hum 50 Hz To use this function a measuring time from more than 0 5 seconds should be selected Arithmetic Function PN15 Under this function the calculation type of the channels is set The different functions can be seen in the program number table Chapter 8 1 The arithmetic function is completely calculated in floating point arithmetic Thereto the scaled measuring values of both input channels are calculated and processed in floating point arithmetic too According to this the resolution of the single channels can be clearly higher than the display value For the calculation a bit mantissa and a 8 bit exponent are used For this reason the adjusted comma PN3 PN8 PN17 PN18 need to be included at the calculation CAUTION The outputs work only with the display value and reach especially at the optional analog output only its resolution Zero point suppression PN18 At the zero point suppression a value range around the zero point can be preset so the display shows a zero The amount that is effective comparably in the positive as in the negative range is parametrised in the program number This can be neccessary if e g a rotation speed is collected by an a
34. tool PM Tool can be used As the communication is a straight point to point connection The baud rate is set to 9600 baud with 8 databits without parity and one stopbit Configuration is performed by transmitting ASCII symbols 7 Programming 7 Programming Functional diagram of programming via key pad cm P 1 second Operating mode Call for program mode Device jumps on the nervermost approved program number Change to the next program number Program number is displayed Change read the deposited parameters in the program Flashing of the least significant digit Save parameter Save the complete range of parameters After 7 sec without selection device changes autonomous in the operating mode 7 Programming Description of the program numbers In the display the program numbers PN are shown right justified as a 3 digit number with a P in front of them ae i Display of e g program number 0 Programming procedure The entire programming of the PZ5 is done by the steps described below Change to programming mode Push the P key to change into programming mode The unit goes to the lowest available program number If the programming lock is activated the key must be pushed for at least 1 second Say a Li P a v Change between program numbers e To change between individual program numbers hold the P key down and push the 4A key for changing to
35. urement is done if one of the measuring channels is selected as display value via the PN15 In this case only the selected channel will be measured and displayed That way the measuring time PN14 can be set on a smaller value 100 ms If 200 ms was adjusted by a two channel measurement then this value will not be changed If the PZ5 is parametrised on a one channel measurement then the access to the program numbers of the deactivated channels is not possible The channel on which no measurement is done and the arithmetic result receive the measuring display value 0 Zero Thereby setpoints or the analog output which are parametrised on these channels are shifted to a defined state 24 7 Programming Arithmetic functions With the PZ5 the measured values can be allocated with each other by different mathematical functions For the following examples the values of the channels and the constants are defined as follows Channel1 100 0 Channel2 40 00 Constant 20 Display XXXX X Addition Channel 1 Channel 2 Constant With this function the two scale signals are added and subsequently multiplied by a constant Example 100 0 40 00 20 2800 0 This function can be used to display inflow outflow volumes weighing technology etc Subtraction Channel 1 Channel 2 Constant With this function the difference from channel 2 to channel 1 is multiplied by a constant Example 100 0 40 00 20
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